Flexible Organic Framework-Modified Membranes for Osmotic Energy Harvesting  

作　　者：Tao Lin Lei Zhang Chao Li Yong-Hong Fu Longcheng Gao Jun-Li Hou 

机构地区：[1]Department of Chemistry,Fudan University,220 Handan Road,Shanghai,200433 China [2]Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education,School of Chemistry,Beihang University,Beijing,100191 China

出　　处：《Chinese Journal of Chemistry》2023年第14期1713-1719,共7页中国化学（英文版）

基　　金：Financial support from the National R&D Program of China(Grant No.2017YFA0206901);the National Natural Science Foundation of China(NSFC,Grant Nos.21725202,21921003,and 21971046);the Science and Technology Commission of Shanghai Municipality(STCSM,Grant No.22JC1403700)is gratefully acknowledged。

摘　　要：Bioinspired membranes are advantageous in capturing the osmotic energy.However,the conventional hybrid membranes possess low harvesting power density due to their low interfacial ionic transport efficiency and high internal resistance.Herein,a new kind of hybrid membranes consisting of porous polymer and flexible organic frameworks was developed.The 3D porous framework enables ions to flux with high efficiency at the polymer-framework interface,resulting in high osmotic energy harvesting efficiency.By systematically screening the pore size of the frameworks,the output power density as high as 5.7 W/m^(2) was achieved under 50-fold KCl salinity gradient.

关 键 词：Osmotic energy harvesting Hybrid membrane Nanochannel Flexible organic frameworks Power density 

分 类 号：TB34[一般工业技术—材料科学与工程]